Sieve for fanning-mills.



T. GHIPERA. SIEVE FOR FANNING MILLS. APPLICATION FILED JUNE 4, 1908.

Patented Jan. 26, 1909.

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SIBVE FOP. FANNIN G MILLS. APPLICATION FILED JUNE 4, 1908.

91 0,904. Patented Jan. 26, 1909.

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SIEVE FOR FANNING-MILLE.

Application filed June 4:, 1908.

To all whom it may concern:

Be it known that I, THOMAS OHIPERA, a citizen of the United States,residing at Breckenridge, in the county of i Villrin, State ofMinnesota, have invented certain new and useful improvements in Sievesfor Fanning Mills and I do hereby declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

This invention relates to sieves for fanning mills, and has as itsprimary object to improve the efliciency of such devices.

In the sieve embodying my invention there is provided a stationary frameand a frame mounted within the stationary frame for reciprocatorymovement and in the stationary frame are j ournaled peripherally groovedrollers, there being wires strung in the reciprocatory frame andtraveling in the groove in the rollers the grooved rollers serving tohold the wires in spaced relation at all times. In addition to thisfeature of the invention, the Wires are alternately of large and smalldiameters so that as the grain is discharged upon the reciprocatoryframe and of course upon the wires, it will be stood on.

end and itsseparation be had with a greater degree of fineness and in amore perfect manner than if the wires were all of the same diameter.

In the accompanying drawings, Figure 1 is a top plan view of the sieveembodying my invention, Fig. 2 is a side elevation thereof, Fig. 3 is avertical longitudinal sectional view therethrough, Fig. 4 is a verticaltransverse sectional view taken in a plane with one of the peripherallygrooved rollers, Fig. 5 is a detail perspective view of a portion of oneof the peripherally grooved rollers and several of the wires.

As shown in the drawings, and as heretofore stated, the sieve embodyingmy inven tion comprises a main frame and a reciprocatory frame andthemain frame is made up of side sills 10, and an end cross sill 11, thesaid sills serving to connect the upper ends of the side sills, and anend board 12 secured at its side edges to the underside of the sidesills 10 adjacent their lower ends. A cross sill 13 also connects thelower ends of the side sills and at its lower edge rests upon the upperface of the end board 12 it being understood that the said end board,the said fipecification of Letters Patent.

Patented Jan. 26, 1909.

Serial No. 4=36,65.

form a box or receptacle into which the wild oats is to discharge.

Mounted for rotation in the main frame of the sieve and transverselythereof are rollers 14 and each of these rollers is formed with aplurality of peripherally extending grooves 15 the said grooves being ofsuch number as to extend practically throughout the entire length of therollers. The function of these rollers will presently be morespecifically stated. Secured to the outer side faces of the side sills10 of the main frame of the sieve are guide plates 16 the said platesbeing eX- tended above the upper faces of the said side sills andserving to guide, between them, the supplemental or reciprooatory frameof the sieve which will now be described.

The reoiprocatory frame mentioned above comprises side sills 17, a crosssill 18 which connects the lower end of the said side sills, and a crosssill 19 which connects the side sills 17 at their upper ends. A sheetmetal plate 20 is secured at its side portions beneath the rear end ofthe side sills 17 and this plate is extended forwardly between the underside of the said side sills and the cross sills 19 which connect theupper end of the said side sills, the rear edge portion of the platebeing bent to extend vertically as indicated by the numeral 21. Strunglongitudinally in the reel procatory frame are wires 22 and 23 the wires22 bein alternated with those of the series 23 and oeing of lessdiameter than the wire 23 these wires being spaced a slight distanceapart as to permit cultivated grain to fall between them. The under sideof the wires 22 and the wires 23 are in a common plane and as aconsequence an uneven upper or top surface is the result it beingunderstood that when grain is deposited upon the wires and thereciprocatory frame reciprocated, the grain will be turned to lielongitudinally of the frame and the cultivated grain will fall betweenthe wires and into a suitable receptacle arranged beneath the frame ofthe sieve. The wild cats will travel down the Wire and fall over thelower end of the reciprocatory frame and into the receptacle formed bythe side sills of the main frame, the lower cross sill thereof, and thecross board 12.

In the drawings I have shown merely the sieve embodying my invention andhave omitted any showing whatsoever of the mill in which the sieve isarranged and also the cross sills and the lower end of the side sills 1means for reciprocating the supplemental frame of the sieve as suchconstruction would only be confusing and forms no part of my invention,it being understood of course that the sieve illustrated and destrung inthe reciprocatory fr me, said wires being alternately of large and smalldiameter, the under sides of the strands of wire being in a commonplane, and means to actuate the reciprocatory frame.

2. A sieve for fanning mills comprising a stationary frame, areciprocatory frame mounted in the stationary frame, wires strung in thereciprocatory frame, said wires being alternately of large and smalldiameter, the under sides of the strands of wire being in a commonplane, rollers supporting said j V 3. A sieve for fanning millscomprising a stationary frame, a reolprocatory frame mounted 1n thestatlonary frame, wires strung in the reciprocatory frame, said wiresbeing alternately of large-and small diameter, rollers supporting saidwires provided with grooves of alternate large and small radius andhaving their bottoms in a common cylindrical surface whereby the wiresare supported in a common plane, and means to actuate the reciprocatoryframe.

In testimony whereof, I affix my signature, in presence of twowitnesses.

THOMAS CHIPERA.

Witnesses:

P. E. TRUAX, P. F. GERGEN.

